Rugged, cast iron Liquid Drain Valve is excellent for dispensing heavy oils, light grease, and other non-flammable viscous liquids from vacuum drums. Lapped brass faceplate provides smooth operation and a perfect seal, while sturdy, metal handle offers optimum flow control. Strainer blocks solids and prevents outlet clogging. Inlet threads into the bunghole of Guardair 55, 30 and 20 gallon vacuum drums. Can be padlocked.